ISO1500DBQR
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Texas Instruments ISO1500DBQR

Manufacturer No:
ISO1500DBQR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC TRANSCEIVER HALF 1/1 16SSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The ISO1500DBQR is a galvanically-isolated differential line transceiver designed for TIA/EIA RS-485 and RS-422 applications. Produced by Texas Instruments, this device features a 3-channel digital isolator and an RS-485 transceiver integrated into an ultra-small 16-pin SSOP (DBQ) package. It is optimized for long-distance communications, breaking ground loops between communicating nodes and allowing for a larger common mode voltage range. The ISO1500DBQR operates over a wide ambient temperature range from –40°C to +125°C and supports supply voltages from 1.71 V to 5.5 V on the logic side and 4.5 V to 5.5 V on the bus side, making it compatible with low-voltage FPGAs and ASICs.

Key Specifications

Parameter Value Unit
Package SSOP (DBQ) -
Pins 16 -
Operating Temperature Range –40 to 125 °C
Data Rate 1 Mbps -
Logic-side Supply Voltage (VCC1) 1.71 to 5.5 V
Bus-side Supply Voltage (VCC2) 4.5 to 5.5 V
ESD Protection ± 16 kV HBM -
Isolation Voltage 3000 VRMS for 1 minute -
Common-mode Transient Immunity 100 kV/µs (typical) -
Unit Load 1/8, up to 256 nodes on bus -

Key Features

  • Meets or exceeds requirements of TIA/EIA-485-A
  • Half-duplex transceiver with low-EMI 1-Mbps data rate
  • Bus I/O protection against IEC ESD contact discharge and IEC EFT events
  • Failsafe receiver for bus open, short, and idle conditions
  • Glitch-free power-up and power-down for hot plug-in
  • Ultra-small SSOP (DBQ-16) package
  • Safety-related certifications including UL 1577, IEC 60950-1, IEC 62368-1, and IEC 61010-1

Applications

  • Electricity meters
  • Protection relay
  • Factory automation and control
  • HVAC systems and building automation
  • Motor drives

Q & A

  1. What is the ISO1500DBQR used for?

    The ISO1500DBQR is used for long-distance communications in TIA/EIA RS-485 and RS-422 applications, providing galvanic isolation between the communicating nodes.

  2. What is the operating temperature range of the ISO1500DBQR?

    The device operates over a temperature range from –40°C to +125°C.

  3. What are the supply voltage ranges for the ISO1500DBQR?

    The logic-side supply voltage (VCC1) ranges from 1.71 V to 5.5 V, and the bus-side supply voltage (VCC2) ranges from 4.5 V to 5.5 V.

  4. What is the data rate of the ISO1500DBQR?

    The ISO1500DBQR supports a data rate of 1 Mbps.

  5. Does the ISO1500DBQR have ESD protection?

    Yes, the device has ± 16 kV HBM ESD protection.

  6. What is the isolation voltage of the ISO1500DBQR?

    The device provides 3000 VRMS of isolation for 1 minute per UL 1577.

  7. What certifications does the ISO1500DBQR have?

    The device has certifications including UL 1577, IEC 60950-1, IEC 62368-1, and IEC 61010-1, among others.

  8. What package type does the ISO1500DBQR come in?

    The device is packaged in an ultra-small 16-pin SSOP (DBQ) package.

  9. Is the ISO1500DBQR suitable for hot plug-in applications?

    Yes, the device supports glitch-free power-up and power-down for hot plug-in applications.

  10. What are some typical applications of the ISO1500DBQR?

    Typical applications include electricity meters, protection relays, factory automation, HVAC systems, and motor drives.

Product Attributes

Type:Transceiver
Protocol:RS422, RS485
Number of Drivers/Receivers:1/1
Duplex:Half
Receiver Hysteresis:45 mV
Data Rate:1Mbps
Voltage - Supply:1.71V ~ 1.89V, 2.25V ~ 5.5V
Operating Temperature:-40°C ~ 125°C (TA)
Mounting Type:Surface Mount
Package / Case:16-SSOP (0.154", 3.90mm Width)
Supplier Device Package:16-SSOP
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Similar Products

Part Number ISO1500DBQR ISO1500DBQ
Manufacturer Texas Instruments Texas Instruments
Product Status Active Active
Type Transceiver Transceiver
Protocol RS422, RS485 RS422, RS485
Number of Drivers/Receivers 1/1 1/1
Duplex Half Half
Receiver Hysteresis 45 mV 45 mV
Data Rate 1Mbps 1Mbps
Voltage - Supply 1.71V ~ 1.89V, 2.25V ~ 5.5V 1.71V ~ 1.89V, 2.25V ~ 5.5V
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C (TA)
Mounting Type Surface Mount Surface Mount
Package / Case 16-SSOP (0.154", 3.90mm Width) 16-SSOP (0.154", 3.90mm Width)
Supplier Device Package 16-SSOP 16-SSOP

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